201324556 has 6 divisors (see below), whose sum is σ = 352317980. Its totient is φ = 100662276.

The previous prime is 201324517. The next prime is 201324559. The reversal of 201324556 is 655423102.

It is not an unprimeable number, because it can be changed into a prime (201324559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25165566 + ... + 25165573.

Almost surely, 2^201324556 is an apocalyptic number.

It is an amenable number.

201324556 is a deficient number, since it is larger than the sum of its proper divisors (150993424).

201324556 is a wasteful number, since it uses less digits than its factorization.

201324556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50331143 (or 50331141 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 201324556 is about 14188.8884695032. Note that the first 3 decimals coincide. The cubic root of 201324556 is about 586.0917164742.

Adding to 201324556 its reverse (655423102), we get a palindrome (856747658).

It can be divided in two parts, 2013 and 24556, that added together give a square (26569 = 163²).

The spelling of 201324556 in words is "two hundred one million, three hundred twenty-four thousand, five hundred fifty-six".